Search for calendar events by title/summary
AI agents call search-events to retrieve information from Calendar MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool searches and retrieves calendar event information based on title/summary criteria. It performs no creation, modification, deletion, or execution of external operations. The action is read-only with no side effects. Low severity because calendar event metadata poses minimal risk to an AI system's ability to cause harm.
From the tool's definition Tool name 'search-events' and description 'Search for calendar events by title/summary' indicate a query operation that retrieves data without modification.
Attacks that exploit this kind of access
Search for calendar events by title/summary. It is categorised as a Read tool in the Calendar MCP MCP Server, which means it retrieves data without modifying state.
Register the Calendar MCP server in PolicyLayer and add a rule for search-events: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Calendar MCP. Nothing to install.
search-events is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the search-events rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for search-events. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
search-events is provided by the Calendar MCP server (wyattjoh/calendar-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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